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WordNet::Similarity::DUserFContributed PerlWordNet::Similarity::DepthFinder(3)

NAME
       WordNet::Similarity::DepthFinder	- methods to find the depth of synsets
       in WordNet taxonomies

SYNOPSIS
	use WordNet::QueryData;
	my $wn = WordNet::QueryData->new;
	defined	$wn or die "Construction of WordNet::QueryData failed";

	use WordNet::Similarity::DepthFinder;

	my $obj	= WordNet::Similarity::DepthFinder->new	($wn);
	my ($err, $errString) =	$obj->getError ();
	$err and die $errString;

	my $wps1 = 'car#n#4';
	my $wps2 = 'oil#n#1';

	my $offset1 = $wn -> offset ($wps1);
	my $offset2= $wn -> offset ($wps2);

	my @roots = $obj->getTaxonomies	($offset1, 'n');
	my $taxonomy_depth = $obj->getTaxonomyDepth ($roots[0],	'n');
	print "The maximum depth of the	taxonomy where $wps1 is	found is $taxonomy_depth\n";

	my @depths = $obj->getSynsetDepth ($offset1, 'n');
	print "The depth of $offset1 is	$depths[0]->[0]\n";

	my @lcsbyic = $obj -> getLCSbyDepth($wps1,$wps2,'n','wps');
	print "$wps1 and $wps2 have LCS	$lcsbyic[0]->[0] with Depth $lcsbyic[0]->[1]\n";

	my @lcsbyic = $obj -> getLCSbyDepth($offset1,$offset2,'n','offset');
	print "$offset1	and $offset2 have LCS $lcsbyic[0]->[0] with Depth $lcsbyic[0]->[1]\n";

DESCRIPTION
       The following methods are provided by this module:

       $obj->initialize	($configfile)
	   Overrides the initialize method in WordNet::Similarity to look for
	   and process depths files.  The initialize method of the superclass
	   is also called.

       $obj->getSynsetDepth ($offset, $pos)
	   Returns the depth(s)	of the synset denoted by $offset and $pos.
	   The return value is a list of references to arrays.	Each array has
	   the form (depth,A root).

       $obj->getTaxonomyDepth ($offset,	$pos)
	   Returns the maximum depth of	the taxonomy rooted at the synset
	   identified by $offset and $pos.  If $offset and $pos	does not
	   identify a root of a	taxonomy, then undef is	returned and an	error
	   is raised.

       $obj->getTaxonomies ($offset, $pos)
	   Returns a list of the roots of the taxonomies to which the synset
	   identified by $offset and $pos belongs.

       getLCSbyDepth($synset1, $synset2, $pos, $mode)
	   Given two input synsets, finds the least common subsumer (LCS) of
	   them.  If there are multiple	candidates for the LCS (due to
	   multiple inheritance	in WordNet), the LCS with the greatest depth
	   is chosen (i.e., the	candidate whose	shortest path to the root is
	   the longest).

	   Parameters: a blessed reference, two	synsets, a part	of speech, and
	   a mode.  The	mode must the either the string	'wps' or 'offset'.  If
	   the mode is wps, then the two input synsets must be in
	   word#pos#sense format.  If the mode is offset, then the input
	   synsets must	be WordNet offsets.

	   Returns: a list of the form ($lcs, $depth) where $lcs is the	LCS
	   (in wps format if mode is 'wps' or an offset	if mode	is 'offset'.
	   $depth is the depth of the LCS in its taxonomy.  Returns undef on
	   error.

       $obj->_processSynsetsFile ($filename)
	   Reads and processes a synsets file as output	by wnDepths.pl

       $obj->_processTaxonomyFile ($filename)
	   Reads and processes a taxonomies file as produced by	wnDepths.pl

AUTHORS
	Ted Pedersen, University of Minnesota Duluth
	tpederse at d.umn.edu

	Jason Michelizzi, University of	Minnesota Duluth
	mich0212 at d.umn.edu

BUGS
       None.

       To report bugs, e-mail tpederse at d.umn.edu or go to
       http://groups.yahoo.com/group/wn-similarity/.

SEE ALSO
       WordNet::Similarity(3) WordNet::Similarity::wup(3)
       WordNet::Similarity::lch(3)

COPYRIGHT
       Copyright (c) 2005, Ted Pedersen	and Jason Michelizzi

       This program is free software; you can redistribute it and/or modify it
       under the terms of the GNU General Public License as published by the
       Free Software Foundation; either	version	2 of the License, or (at your
       option) any later version.

       This program is distributed in the hope that it will be useful, but
       WITHOUT ANY WARRANTY; without even the implied warranty of
       MERCHANTABILITY or FITNESS FOR A	PARTICULAR PURPOSE.  See the GNU
       General Public License for more details.

       You should have received	a copy of the GNU General Public License along
       with this program; if not, write	to

	The Free Software Foundation, Inc.,
	59 Temple Place	- Suite	330,
	Boston,	MA  02111-1307,	USA.

       Note: a copy of the GNU General Public License is available on the web
       at <http://www.gnu.org/licenses/gpl.txt>	and is included	in this
       distribution as GPL.txt.

perl v5.24.1			  2008-03-2WordNet::Similarity::DepthFinder(3)

NAME | SYNOPSIS | DESCRIPTION | AUTHORS | BUGS | SEE ALSO | COPYRIGHT

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